Astrologically, Pluto represents transformations, death & regeneration, intense experiences, things you suppress, things that need to be exposed and/or eliminated and shared resources. The convection process described in this article is a great analogy for his function of renewal in our lives.

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Computer simulations show that the heart-shaped Sputnik Planum region on Pluto is covered with icy, churning, convective

Source: Pluto’s heart: Icy and alive | EarthSky.org